refactor (#6)

Reviewed-on: #6

Autoloads/FloatingTextManager.cs

@@ -7,22 +7,34 @@ namespace Mr.BrickAdventures.Autoloads;
 public partial class FloatingTextManager : Node
 {
     [Export] public PackedScene FloatingTextScene { get; set; }
-    
+
     [ExportGroup("Colors")]
     [Export] public Color DamageColor { get; set; } = new Color("#b21030"); // Red
     [Export] public Color HealColor { get; set; } = new Color("#71f341");   // Green
     [Export] public Color CoinColor { get; set; } = new Color("#ebd320");   // Gold
     [Export] public Color MessageColor { get; set; } = new Color("#ffffff"); // White
-    
+
+    public static FloatingTextManager Instance { get; private set; }
+
+    public override void _Ready()
+    {
+        Instance = this;
+    }
+
+    public override void _ExitTree()
+    {
+        if (Instance == this) Instance = null;
+    }
+
     public void ShowDamage(float amount, Vector2 position)
     {
         var text = Mathf.Round(amount * 100f).ToString(CultureInfo.InvariantCulture);
         CreateFloatingText(text, position, DamageColor);
     }
-    
+
     public void ShowHeal(float amount, Vector2 position)
     {
-        var text = $"+{Mathf.Round(amount)}";
+        var text = $"+{Mathf.Round(amount * 100f).ToString(CultureInfo.InvariantCulture)}";
         CreateFloatingText(text, position, HealColor);
     }
 
@@ -31,12 +43,12 @@ public partial class FloatingTextManager : Node
         var text = $"+{amount}";
         CreateFloatingText(text, position, CoinColor);
     }
-    
+
     public void ShowMessage(string message, Vector2 position)
     {
         CreateFloatingText(message, position, MessageColor);
     }
-    
+
     private void CreateFloatingText(string text, Vector2 position, Color color)
     {
         if (FloatingTextScene == null)